n = 148 , σ = 7.6 , α = 1 − 0.01 = 0.99 , Z α 2 = Z 0.495 = 2.576 (Round to the nearest hundredth) Find E = Z 0.495 σ √ n = Find 7.7 + E = Find 7.7 − E
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6 - Confidence level (α) = 0.99 - Z-value for α/2 (Z_0.495) = 2.576 Show more…
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